<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
      <div v-if="books.length">
        <table>
            <thead>
                <tr>
                    <th>书籍名称</th>
                    <th>出版日期</th>
                    <th>价格</th>
                    <th>数量</th>
                    <th>操作</th>
                </tr>
            </thead>
            <tbody>
                    <tr v-for="(item,index) in books">
                        <td>{{item.id}}</td>
                        <td>{{item.name}}</td>
                        <td>{{item.date}}</td>
                        <td>{{item.price | showPrice}}</td>
                        <td>
                            <button @click="decrement(index)" >+</button>
                            {{item.count}}
                            <button @click="increment(index)" v-bind:disabled="item.count <= 1" >-</button>
                        </td>
                        <td>
                            <button @click="removeHandle(index)">移除</button>
                        </td>
                    </tr>
            </tbody>
        </table>
        <h2>总价值:{{totalPrice}}</h2>
      </div>
      <h2 v-else>购物车为空</h2>
    </div>
    <script src="../js/vue.js"></script>
    <script src="./main.js"></script>
</body>
</html>